Finding the Fourth Proportional to 438,417.10, 657,625.65 and 202,221.10
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Solution
The fourth proportional to 438,417.10, 657,625.65 and 202,221.10 is: 303,331.65
Step by Step Solution
- Step 1: Write the proportion equation
438,417.10 : 657,625.65 = 202,221.10 : x - Step 2: Convert to fraction form
438,417.10/657,625.65 = 202,221.10/x - Step 3: Cross multiply
438,417.10x = 657,625.65 × 202,221.10 - Step 4: Simplify right side
438,417.10x = 132,985,782,331.22 - Step 5: Solve for x
x = 132,985,782,331.22/438,417.10 - Step 6: Final answer
x = 303,331.65
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.